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US2965578A
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US
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Shaped articles containing 2. 4-dihydroxy-benzoyl furane
Assignee: Bayer AG
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Filing: 1957-03-20
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Granted: 1960-12-20
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Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Pestemer Max
- 👤 Siefken Werner
- 👤 Bayer Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1535; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4973; A61Q; A61Q17/00; A61Q17/04; D; D06; D06M; D06M13/00; D06M13/10; D06M13/12; D06M13/127; D21; D21H; D21H21/00; D21H21/14; D21H21/143; G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2043805A
Cited
US2069803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |